The shared WhatsApp sandbox (one Zernio-owned number, all users test against it). Present when the sandbox is configured; null otherwise. The accountId lets you address the sandbox in compose endpoints. template is the only template a sandbox send is allowed to use.
| Name | Type | Description | Notes |
|---|---|---|---|
| phoneNumber | String | [optional] | |
| accountId | String | [optional] | |
| template | GetWhatsAppPhoneNumbers200ResponseSandboxTemplate | [optional] | |
| isSandbox | Boolean | [optional] |